{"id":15452,"date":"2024-01-12T14:48:10","date_gmt":"2024-01-12T11:18:10","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/"},"modified":"2024-01-12T14:48:10","modified_gmt":"2024-01-12T11:18:10","slug":"%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/","title":{"rendered":"\u062a\u0641\u0627\u0648\u062a \u0628\u06cc\u0646 var\u060c let \u0648 const \u062f\u0631 JavaScript \u0648 Best PracticesProgramming \u0647\u0645\u06cc\u0634\u0647 \u0634\u0627\u0645\u0644 \u062a\u0639\u0631\u06cc\u0641 \u062f\u0627\u062f\u0647\u060c \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0648 \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a.  \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0635\u0648\u0631\u062a \u0628\u06cc\u062a \u0647\u0627\u06cc\u06cc \u0627\u0632 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0646\u0634\u0627\u0646 \u062f\u0627\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631\u06cc \u0622\u0646\u0647\u0627 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u06cc\u0645.  \u0627\u0632 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ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0633\u0631\u0641\u0635\u0644\u0647\u0627\u06cc \u0645\u0637\u0644\u0628<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/#%d9%85%d8%b9%d8%b1%d9%81%db%8c\" >\u0645\u0639\u0631\u0641\u06cc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/#scope_%d8%af%d8%b1_%d8%ac%d8%a7%d9%88%d8%a7_%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa_%da%86%db%8c%d8%b3%d8%aa%d8%9f\" >Scope \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0686\u06cc\u0633\u062a\u061f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/#%d8%a7%db%8c%d9%86_var_%da%a9%d9%84%d9%85%d9%87_%da%a9%d9%84%db%8c%d8%af%db%8c_%d8%af%d8%b1_%d8%ac%d8%a7%d9%88%d8%a7_%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa\" >\u0627\u06cc\u0646 var \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/#%d9%85%d8%ad%d8%af%d9%88%d8%af%d9%87_%d8%a7%d8%b2_var\" >\u0645\u062d\u062f\u0648\u062f\u0647 \u0627\u0632 var<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/#%d9%85%d9%88%d8%b6%d9%88%d8%b9_%d8%a8%d8%a7_var\" >\u0645\u0648\u0636\u0648\u0639 \u0628\u0627 var<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/#%d8%a7%db%8c%d9%86_%d8%a7%d8%ac%d8%a7%d8%b2%d9%87_%d8%af%d9%87%db%8c%d8%af_%da%a9%d9%84%d9%85%d9%87_%da%a9%d9%84%db%8c%d8%af%db%8c_%d8%af%d8%b1_%d8%ac%d8%a7%d9%88%d8%a7_%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa\" >\u0627\u06cc\u0646 \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f 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href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/#%d8%a7%db%8c%d9%86_%d9%be%d8%a7%db%8c%d8%a7%d9%86_%da%a9%d9%84%d9%85%d9%87_%da%a9%d9%84%db%8c%d8%af%db%8c_%d8%af%d8%b1_%d8%ac%d8%a7%d9%88%d8%a7_%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa\" >\u0627\u06cc\u0646 \u067e\u0627\u06cc\u0627\u0646 \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/#%d9%85%d8%ad%d8%af%d9%88%d8%af%d9%87_%d8%a7%d8%b2_%d9%be%d8%a7%db%8c%d8%a7%d9%86\" >\u0645\u062d\u062f\u0648\u062f\u0647 \u0627\u0632 \u067e\u0627\u06cc\u0627\u0646<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%aa%d9%81%d8%a7%d9%88%d8%aa-%d8%a8%db%8c%d9%86-var%d8%8c-let-%d9%88-const-%d8%af%d8%b1-javascript-%d9%88-best-practicesprogramming-%d9%87%d9%85%db%8c%d8%b4%d9%87-%d8%b4%d8%a7%d9%85%d9%84-%d8%aa\/#%da%a9%d9%86%d9%88%d8%a7%d9%86%d8%b3%db%8c%d9%88%d9%86_%d9%87%d8%a7%db%8c_%da%a9%d8%af%d9%86%d9%88%db%8c%d8%b3%db%8c_%d8%ae%d9%88%d8%a8\" >\u06a9\u0646\u0648\u0627\u0646\u0633\u06cc\u0648\u0646 \u0647\u0627\u06cc 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id=\"introduction\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%b9%d8%b1%d9%81%db%8c\"><\/span>\u0645\u0639\u0631\u0641\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0647\u0645\u06cc\u0634\u0647 \u0634\u0627\u0645\u0644 \u062a\u0639\u0631\u06cc\u0641 \u062f\u0627\u062f\u0647\u060c \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0648 \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a.  \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0635\u0648\u0631\u062a \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f <em>\u0628\u06cc\u062a \u0647\u0627<\/em> \u0627\u0637\u0644\u0627\u0639\u0627\u062a\u06cc \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u06cc\u0645.  \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u06a9\u0627\u0646 \u0647\u0627\u06cc \u062d\u0627\u0641\u0638\u0647 \u0686\u0646\u062f\u0627\u0646 \u0642\u0627\u0628\u0644 \u062e\u0648\u0627\u0646\u062f\u0646 \u062a\u0648\u0633\u0637 \u0627\u0646\u0633\u0627\u0646 \u0646\u06cc\u0633\u062a\u0646\u062f\u060c \u0648 <em>\u062a\u063a\u06cc\u06cc\u0631 \u062f\u0627\u062f\u0646<\/em> \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 &#8211; \u0645\u0627 \u062d\u0627\u0634\u06cc\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0631\u0627 \u0634\u0631\u0648\u0639 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 <em>\u0645\u062a\u063a\u06cc\u0631<\/em> \u062f\u0627\u062f\u0647 \u0647\u0627\u060c \u0628\u0627 \u062f\u0627\u0644 \u0647\u0627\u06cc \u0642\u0627\u0628\u0644 \u062e\u0648\u0627\u0646\u062f\u0646 \u0628\u0631\u0627\u06cc \u0627\u0646\u0633\u0627\u0646\u060c \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0646\u0627\u0645\u06cc\u0645 \u0631\u0648\u06cc\u060c \u0628\u0647 \u0637\u0648\u0631 \u063a\u06cc\u0631 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0628\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u062f\u0631\u0648\u0646 \u062d\u0627\u0641\u0638\u0647 \u0627\u0634\u0627\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<blockquote>\n<p>\u0627\u06cc\u0646 \u062f\u0627\u0644 \u0647\u0627 \u0645\u0639\u0645\u0648\u0644\u0627 \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f <strong>\u0645\u062a\u063a\u06cc\u0631\u0647\u0627<\/strong> \u06cc\u0627 <strong>\u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0645\u0631\u062c\u0639<\/strong>.<\/p>\n<\/blockquote>\n<p>\u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u062f\u0631 \u0627\u0635\u0644 \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632 <em>\u0627\u0634\u0627\u0631\u0647 \u06af\u0631\u0647\u0627<\/em> \u06cc\u0627 <em>\u0645\u0646\u0627\u0628\u0639<\/em> \u0628\u0647 \u0628\u0631\u062e\u06cc \u0627\u0632 \u062f\u0627\u062f\u0647 \u0647\u0627 \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u0645\u0627\u0634\u06cc\u0646\u060c \u0648 \u0646\u0634\u0627\u0646\u06af\u0631 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0627\u062f \u062a\u0627 \u0648\u0636\u0639\u06cc\u062a \u0648\u0627\u0642\u0639\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc\u06cc \u0631\u0627 \u06a9\u0647 &#8220;\u0628\u0631\u0686\u0633\u0628 \u06af\u0630\u0627\u0631\u06cc \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645&#8221; \u0631\u0627 \u0645\u0646\u0639\u06a9\u0633 \u06a9\u0646\u062f.<\/p>\n<div class=\"alert alert-note\">\n<div class=\"flex\">\n<div class=\"flex-shrink-0 mr-3\"><\/div>\n<div class=\"w-full\">\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f:<\/strong> \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0648 \u0639\u0627\u0645\u06cc\u0627\u0646\u0647 \u0686\u0646\u06cc\u0646 \u06af\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f <em>&#8220;\u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u06a9\u0646\u0646\u062f&#8221;<\/em> \u0648 \u0627\u06cc\u0646\u06a9\u0647 \u0622\u0646\u0647\u0627 \u0647\u0633\u062a\u0646\u062f <em>&#8220;\u0638\u0631\u0648\u0641 \u0628\u0631\u0627\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627&#8221;<\/em>.  \u0627\u06cc\u0646 \u0627\u0632 \u0646\u0638\u0631 \u0641\u0646\u06cc \u0646\u0627\u062f\u0631\u0633\u062a \u0627\u0633\u062a \u0648 \u0627\u0632 \u06cc\u06a9 \u0645\u0631\u0632 \u0645\u0639\u0646\u0627\u06cc\u06cc \u0645\u0628\u0647\u0645 \u0646\u0627\u0634\u06cc \u0645\u06cc \u0634\u0648\u062f &#8211; \u0645\u0634\u062e\u0635 \u0646\u06cc\u0633\u062a \u06a9\u0647 \u0622\u06cc\u0627 \u0627\u0641\u0631\u0627\u062f \u0628\u0647 \u0622\u0646 \u0627\u0634\u0627\u0631\u0647 \u0645\u06cc \u06a9\u0646\u0646\u062f \u06cc\u0627 \u062e\u06cc\u0631 <strong><em>\u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0645\u0631\u062c\u0639<\/em><\/strong>  \u06cc\u0627 <strong><em>\u0627\u0634\u06cc\u0627\u0621 \u062f\u0631 \u062d\u0627\u0641\u0638\u0647<\/em><\/strong>.  (\u0645\u0631\u062c\u0639) \u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u0647\u0633\u062a\u0646\u062f <strong>\u0627\u0634\u0627\u0631\u0647 \u06af\u0631\u0647\u0627<\/strong>\u060c \u0648 \u0622\u0646\u0647\u0627 <strong>\u0646\u0642\u0637\u0647<\/strong> \u0628\u0647 <strong>\u0627\u0634\u06cc\u0627\u0621 \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u062f\u0633\u062a\u06af\u0627\u0647<\/strong> &#8211; \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f.  \u0627\u0635\u0637\u0644\u0627\u062d\u0627\u062a \u0645\u062d\u0627\u0648\u0631\u0647 \u0627\u06cc \u0628\u0647 \u0627\u0646\u062f\u0627\u0632\u0647 \u0627\u06cc \u0631\u0627\u06cc\u062c \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0622\u0646\u0647\u0627 \u0631\u0627 \u062f\u0631 \u0627\u0633\u0646\u0627\u062f \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f\u060c \u0627\u0645\u0627 \u0627\u0631\u0632\u0634 \u0622\u0646 \u0631\u0627 \u062f\u0627\u0631\u062f \u06a9\u0647 \u062a\u062e\u0635\u06cc\u0635 \u062d\u0627\u0641\u0638\u0647 \u0634\u06cc\u0621 \u0631\u0627 \u062d\u062f\u0627\u0642\u0644 \u062f\u0631 \u067e\u0634\u062a \u0633\u0631 \u062e\u0648\u062f \u0646\u06af\u0647 \u062f\u0627\u0631\u06cc\u062f.<\/p>\n<\/p><\/div><\/div><\/div>\n<p>\u0642\u0628\u0644 \u0627\u0632 \u0627\u0646\u062a\u0634\u0627\u0631 <strong><em>ES2015 (ES6)<\/em><\/strong>\u060c \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0641\u0642\u0637 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0639\u0644\u0627\u0646 \u0634\u062f\u0646\u062f <code>var<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc\u061b  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0628\u0627 \u0645\u0639\u0631\u0641\u06cc ES6\u060c \u0631\u0627\u0647 \u0647\u0627\u06cc \u062c\u062f\u06cc\u062f\u06cc \u0628\u0631\u0627\u06cc \u0627\u0639\u0644\u0627\u0645 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u060c <code>let<\/code> \u0648 <code>const<\/code>\u060c \u0645\u0639\u0631\u0641\u06cc \u0634\u062f\u0646\u062f.  \u0627\u06cc\u0646 \u0627\u063a\u0644\u0628 \u0633\u0648\u0627\u0644\u0627\u062a\u06cc \u0631\u0627 \u0645\u0637\u0631\u062d \u0645\u06cc \u06a9\u0646\u062f &#8211; \u0639\u0645\u062f\u062a\u0627\u064b \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u06cc\u0646\u06a9\u0647 \u06a9\u062f\u0627\u0645 \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u0628\u0627\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f \u0648 \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">var<\/span> english = <span class=\"hljs-string\">\"Hello there!\"<\/span>;\n<span class=\"hljs-keyword\">let<\/span> french = <span class=\"hljs-string\">\"Bonjour!\"<\/span>;\n<span class=\"hljs-keyword\">const<\/span> german = <span class=\"hljs-string\">\"Hallo!\"<\/span>;\n<\/code><\/pre>\n<blockquote>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627\u060c \u062a\u0641\u0627\u0648\u062a \u0628\u06cc\u0646 \u0633\u0647 \u0631\u0648\u0634 \u0645\u062e\u062a\u0644\u0641 \u0628\u0631\u0627\u06cc \u0627\u0639\u0644\u0627\u0645 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f &#8211; <code>var<\/code>\u060c <code>let<\/code> \u0648 <code>const<\/code>\u060c \u062f\u0627\u0645\u0646\u0647 \u0622\u0646\u0647\u0627 \u0648 \u0632\u0645\u0627\u0646 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u062f\u0627\u0645.<\/p>\n<\/blockquote>\n<h3 id=\"whatisscopeinjavascript\"><span class=\"ez-toc-section\" id=\"scope_%d8%af%d8%b1_%d8%ac%d8%a7%d9%88%d8%a7_%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa_%da%86%db%8c%d8%b3%d8%aa%d8%9f\"><\/span>Scope \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0686\u06cc\u0633\u062a\u061f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><em>\u0645\u062d\u062f\u0648\u062f\u0647<\/em> \u06cc\u06a9 \u0645\u0641\u0647\u0648\u0645 \u0645\u0647\u0645 \u0628\u0631\u0627\u06cc \u0646\u0648\u0634\u062a\u0646 \u06a9\u062f \u062f\u0631 \u0627\u06a9\u062b\u0631 \u0632\u0628\u0627\u0646 \u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0627\u0633\u062a \u0648 \u062f\u0631 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u0645\u062a\u063a\u06cc\u0631\u06cc \u06a9\u0647 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u0646\u0642\u0634 \u0645\u0647\u0645\u06cc \u0627\u06cc\u0641\u0627 \u0645\u06cc \u06a9\u0646\u062f.  \u0645\u062d\u062f\u0648\u062f\u0647 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u062f <em>\u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0628\u0648\u062f\u0646 \u0645\u062a\u063a\u06cc\u0631<\/em>.  \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062f\u0648 \u062d\u0648\u0632\u0647 \u062f\u0627\u0631\u06cc\u0645: <strong>\u062c\u0647\u0627\u0646\u06cc<\/strong> \u0648 <strong>\u0645\u062d\u0644\u06cc<\/strong>.<\/p>\n<ul>\n<li><strong>\u062f\u0627\u0645\u0646\u0647 \u062c\u0647\u0627\u0646\u06cc:<\/strong> \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0627\u0639\u0644\u0627\u0645 \u0634\u062f\u0647 \u062e\u0627\u0631\u062c \u0627\u0632 \u0647\u0631 <em>\u0628\u0644\u0648\u06a9 \u06a9\u062f<\/em> \u06cc\u0627 <em>\u062a\u0627\u0628\u0639<\/em> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u062c\u0647\u0627\u0646\u06cc \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f \u0632\u06cc\u0631\u0627 \u062f\u0627\u0631\u0627\u06cc a \u0647\u0633\u062a\u0646\u062f <strong>\u062f\u0627\u0645\u0646\u0647 \u062c\u0647\u0627\u0646\u06cc<\/strong>\u060c \u0648 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0627\u0632 \u0647\u0631 \u062a\u0627\u0628\u0639 \u06cc\u0627 \u0628\u0644\u0648\u06a9\u06cc \u0627\u0631\u062c\u0627\u0639 \u062f\u0627\u062f\u0647 \u0634\u0648\u062f.<\/li>\n<\/ul>\n<div class=\"alert alert-note\">\n<div class=\"flex\">\n<div class=\"flex-shrink-0 mr-3\"><\/div>\n<div class=\"w-full\">\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f:<\/strong> \u062f\u0631 \u06cc\u06a9 \u0633\u0646\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0641\u0642\u0637 \u06cc\u06a9 <strong>\u062f\u0627\u0645\u0646\u0647 \u062c\u0647\u0627\u0646\u06cc<\/strong> \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.<\/p>\n<\/p><\/div><\/div><\/div>\n<p>\u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u06cc\u06a9 \u0641\u0627\u06cc\u0644 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062f\u0627\u0631\u06cc\u062f.  \u0645\u062c\u062f\u062f\u0627\u064b\u060c \u0647\u0631 \u0645\u062a\u063a\u06cc\u0631\u06cc \u06a9\u0647 \u062e\u0627\u0631\u062c \u0627\u0632 \u0647\u0631 \u062a\u0627\u0628\u0639 \u06cc\u0627 \u0628\u0644\u0648\u06a9 \u0627\u0639\u0644\u0627\u0645 \u0634\u062f\u0647 \u0628\u0627\u0634\u062f\u060c \u0628\u0647 \u0635\u0648\u0631\u062a \u0633\u0631\u0627\u0633\u0631\u06cc \u062f\u0627\u0631\u0627\u06cc \u062f\u0627\u0645\u0646\u0647 \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ Initialized outside of function or block<\/span>\n<span class=\"hljs-keyword\">var<\/span> name = <span class=\"hljs-string\">\"John Doe\"<\/span>;\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">logName<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n  <span class=\"hljs-built_in\">console<\/span>.log(name);\n};\n    \nlogName();\n<\/code><\/pre>\n<p>\u062f\u0631 \u0645\u062b\u0627\u0644 \u0628\u0627\u0644\u0627\u060c <code>name<\/code> \u062f\u0631 \u062f\u0627\u062e\u0644 \u0642\u0627\u0628\u0644 \u062f\u0633\u062a\u0631\u0633\u06cc \u0627\u0633\u062a <code>logName()<\/code> \u0639\u0645\u0644\u06a9\u0631\u062f\u060c \u0632\u06cc\u0631\u0627 \u062f\u0627\u0645\u0646\u0647 \u062c\u0647\u0627\u0646\u06cc \u062f\u0627\u0631\u062f.  \u062f\u0631 \u0632\u0645\u06cc\u0646\u0647 \u0628\u0631\u0646\u0627\u0645\u0647 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c \u0648 <code>logName()<\/code> \u062a\u0627\u0628\u0639 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062a\u0645\u0627\u0633 \u0628\u06af\u06cc\u0631\u062f \u0631\u0648\u06cc \u0622\u0646 \u0632\u0645\u06cc\u0646\u0647!<\/p>\n<ul>\n<li><strong>Local  \u0645\u062d\u062f\u0648\u062f\u0647:<\/strong> \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0627\u0639\u0644\u0627\u0645 \u0634\u062f\u0647 \u062f\u0631 \u0647\u0631 \u06a9\u062f\u0627\u0645 <em>\u0628\u0644\u0648\u06a9 \u06a9\u062f<\/em> \u06cc\u0627 <em>\u062a\u0627\u0628\u0639<\/em> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0645\u062d\u0644\u06cc \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f\u060c \u0632\u06cc\u0631\u0627 \u062f\u0627\u0631\u0627\u06cc a \u0647\u0633\u062a\u0646\u062f <strong>\u0645\u062d\u062f\u0648\u062f\u0647 \u0645\u062d\u0644\u06cc<\/strong>.  \u0622\u0646\u0647\u0627 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0641\u0642\u0637 \u062f\u0631 \u0628\u0644\u0648\u06a9 \u0647\u0627\u06cc \u06a9\u062f \u06cc\u0627 \u062a\u0648\u0627\u0628\u0639 \u0627\u0631\u062c\u0627\u0639 \u062f\u0627\u062f <em>\u06a9\u0647 \u062f\u0631 \u0622\u0646 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0646\u062f<\/em>.<\/li>\n<\/ul>\n<pre><code class=\"hljs\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">logName<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n  <span class=\"hljs-comment\">\/\/ Initialized within a function or block<\/span>\n  <span class=\"hljs-keyword\">var<\/span> name = <span class=\"hljs-string\">\"John Doe\"<\/span>;\n  <span class=\"hljs-keyword\">var<\/span> id = <span class=\"hljs-number\">1<\/span>;\n  <span class=\"hljs-built_in\">console<\/span>.log(name);\n};\n    \n<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">logId<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n  <span class=\"hljs-built_in\">console<\/span>.log(id);\n}\n    \nlogId();\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u0645\u0646\u062c\u0631 \u0628\u0647:<\/p>\n<pre><code class=\"hljs\">error: Uncaught ReferenceError: id is not defined\n<\/code><\/pre>\n<p>\u0686\u0637\u0648\u0631\u061f <code>id<\/code> \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a &#8211; \u0627\u0645\u0627 \u062f\u0631 \u0622\u0646 \u062a\u0639\u0631\u06cc\u0641 \u0646\u0634\u062f\u0647 \u0627\u0633\u062a <em>\u0645\u062d\u062f\u0648\u062f\u0647<\/em> \u0627\u0632 <code>logId()<\/code> \u062a\u0627\u0628\u0639.  \u062a\u0627 \u0622\u0646\u062c\u0627 \u06a9\u0647 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0645\u0631\u0628\u0648\u0637 \u0645\u06cc \u0634\u0648\u062f &#8211; \u062e\u06cc\u0631 <code>id<\/code> \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.  \u0628\u0627 \u0628\u0631\u0631\u0633\u06cc \u0627\u06cc\u0646\u06a9\u0647 \u0622\u06cc\u0627 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06cc\u0627 \u0646\u0647 \u0634\u0631\u0648\u0639 \u0645\u06cc \u0634\u0648\u062f <em>\u0645\u062a\u063a\u06cc\u0631 \u0628\u0627 \u0645\u062d\u062f\u0648\u062f\u0647 \u0645\u062d\u0644\u06cc<\/em>.  \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f\u060c \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0622\u06cc\u0627 A \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06cc\u0627 \u062e\u06cc\u0631 <em>\u0645\u062a\u063a\u06cc\u0631 \u0628\u0627 \u062f\u0627\u0645\u0646\u0647 \u062c\u0647\u0627\u0646\u06cc<\/em>.  \u0627\u06af\u0631 \u0646\u0647 &#8211; <code>id<\/code> \u0627\u0632 \u0645\u062a\u0646 \u062a\u0639\u0631\u06cc\u0641 \u0646\u0634\u062f\u0647 \u0627\u0633\u062a <code>logId()<\/code>!<\/p>\n<p>\u0628\u0627 \u067e\u0631\u0627\u06cc\u0645\u0631\/\u06cc\u0627\u062f\u0622\u0648\u0631\u06cc \u062e\u0627\u0631\u062c \u0627\u0632 \u0631\u0627\u0647 &#8211; \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0646\u06af\u0627\u0647\u06cc \u0628\u0647 \u0686\u06af\u0648\u0646\u06af\u06cc \u0622\u0646 \u0628\u06cc\u0646\u062f\u0627\u0632\u06cc\u0645 <code>var<\/code>\u060c <code>let<\/code> \u0648 <code>const<\/code> \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f \u0631\u0648\u06cc \u062f\u0627\u0645\u0646\u0647\u060c \u0648 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0647\u0631 \u06a9\u062f\u0627\u0645 \u0628\u0627\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f!<\/p>\n<h2 id=\"thevarkeywordinjavascript\"><span class=\"ez-toc-section\" id=\"%d8%a7%db%8c%d9%86_var_%da%a9%d9%84%d9%85%d9%87_%da%a9%d9%84%db%8c%d8%af%db%8c_%d8%af%d8%b1_%d8%ac%d8%a7%d9%88%d8%a7_%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa\"><\/span>\u0627\u06cc\u0646 <em>var<\/em> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c <code>var<\/code> \u06cc\u06a9 \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u0631\u0632\u0631\u0648 \u0634\u062f\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627 \u0646\u0627\u0645 \u0645\u062a\u063a\u06cc\u0631 \u0645\u0631\u062c\u0639 \u062f\u0646\u0628\u0627\u0644 \u0645\u06cc \u0634\u0648\u062f.  \u0646\u0627\u0645\u06cc \u06a9\u0647 \u0628\u0639\u062f \u0627\u0632 \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u0634\u0648\u062f \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0646\u0634\u0627\u0646\u06af\u0631 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u062f\u0631\u0648\u0646 \u062d\u0627\u0641\u0638\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f.<\/p>\n<p>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0646 <code>var<\/code> \u0642\u062f\u06cc\u0645\u06cc \u062a\u0631\u06cc\u0646 \u0631\u0648\u0634 \u0627\u0633\u062a <strong>\u0627\u0639\u0644\u0627\u0645 \u0645\u062a\u063a\u06cc\u0631<\/strong> \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a  \u0628\u06cc\u0627\u06cc\u06cc\u062f \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u0648 \u0631\u0627 \u0627\u0639\u0644\u0627\u0645 \u06a9\u0646\u06cc\u0645 <strong>\u0622\u0646 \u0631\u0627 \u0627\u0648\u0644\u06cc\u0647 \u06a9\u0646\u06cc\u062f<\/strong> \u0628\u0627 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f\u0646 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u0628\u0647 \u0622\u0646 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631 \u0627\u0646\u062a\u0633\u0627\u0628 (<code>=<\/code>):<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ Declaration and initialization<\/span>\n<span class=\"hljs-keyword\">var<\/span> name = <span class=\"hljs-string\">\"John Doe\"<\/span>;\n<\/code><\/pre>\n<p>\u0627\u0632 \u0637\u0631\u0641 \u062f\u06cc\u06af\u0631\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u06cc\u0646 \u0631\u0627 \u0628\u0647 \u062f\u0648 \u0645\u0631\u062d\u0644\u0647 \u062a\u0642\u0633\u06cc\u0645 \u06a9\u0646\u06cc\u062f &#8211; \u0645\u062a\u063a\u06cc\u0631 <em>\u0627\u0639\u0644\u0627\u0645<\/em> (\u0622\u0646\u0686\u0647 \u0647\u0633\u062a) \u0648 \u0645\u062a\u063a\u06cc\u0631 <em>\u0645\u0642\u062f\u0627\u0631\u062f\u0647\u06cc \u0627\u0648\u0644\u06cc\u0647<\/em> (\u062a\u062e\u0635\u06cc\u0635 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u0628\u0647 \u0622\u0646):<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ Declaration<\/span>\n<span class=\"hljs-keyword\">var<\/span> name;\n<span class=\"hljs-comment\">\/\/ Initialization<\/span>\nname = <span class=\"hljs-string\">\"John Doe\"<\/span>;\n<\/code><\/pre>\n<div class=\"alert alert-note\">\n<div class=\"flex\">\n<div class=\"flex-shrink-0 mr-3\"><\/div>\n<div class=\"w-full\">\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f:<\/strong> \u062f\u0631 \u0632\u0628\u0627\u0646\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0628\u0647 \u0634\u062f\u062a \u062a\u0627\u06cc\u067e \u0645\u06cc\u200c\u0634\u0648\u0646\u062f\u060c \u0645\u0627\u0646\u0646\u062f \u062c\u0627\u0648\u0627\u060c \u0628\u0631\u0627\u06cc \u0645\u062f\u062a \u0637\u0648\u0644\u0627\u0646\u06cc\u060c \u0634\u0645\u0627 \u0627\u06cc\u0646 \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f <em>\u0646\u0648\u0639<\/em> \u0627\u0632 \u0645\u062a\u063a\u06cc\u0631 \u062f\u0631 \u0637\u0648\u0644 <em>\u0627\u0639\u0644\u0627\u0645<\/em>\u060c \u0648 \u062f\u0631 \u0637\u0648\u0644 <em>\u0645\u0642\u062f\u0627\u0631\u062f\u0647\u06cc \u0627\u0648\u0644\u06cc\u0647<\/em>\u060c \u0634\u0645\u0627 \u0641\u0642\u0637 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u0646\u0627\u0633\u0628 \u0628\u0627 \u0622\u0646 \u0646\u0648\u0639 \u0631\u0627 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062f.  \u0627\u0632 \u0622\u0646\u062c\u0627 \u06a9\u0647 <strong>\u062c\u0627\u0648\u0627 10<\/strong> &#8211; \u0622 <code>var<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u0627\u0636\u0627\u0641\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0646\u0648\u0639 \u0622\u06af\u0646\u0648\u0633\u062a\u06cc\u06a9 \u0627\u0633\u062a \u0648 \u0646\u0648\u0639 \u0631\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0627\u0633\u062a\u0646\u0628\u0627\u0637 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<\/p><\/div><\/div><\/div>\n<h3 id=\"scopeofvar\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%ad%d8%af%d9%88%d8%af%d9%87_%d8%a7%d8%b2_var\"><\/span>\u0645\u062d\u062f\u0648\u062f\u0647 \u0627\u0632 <em>var<\/em><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0648\u0642\u062a\u06cc \u062f\u0631 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u0634\u0648\u062f &#8211; \u0647\u0631 <code>var<\/code> \u0645\u062d\u062f\u0648\u062f \u0628\u0647 \u0622\u0646 \u062a\u0627\u0628\u0639 \u0627\u0633\u062a.  \u0648\u0642\u062a\u06cc \u062e\u0627\u0631\u062c \u0627\u0632 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062a\u0639\u0631\u06cc\u0641 \u0634\u0648\u062f\u060c a <code>var<\/code> \u062c\u0647\u0627\u0646\u06cc \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\">  <span class=\"hljs-keyword\">var<\/span> firstName = <span class=\"hljs-string\">\"John\"<\/span>;\n  \n  <span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">checkLastName<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n    <span class=\"hljs-keyword\">var<\/span> lastName = <span class=\"hljs-string\">\"Doe\"<\/span>;\n  }\n<\/code><\/pre>\n<p>\u062f\u0631 \u0645\u062b\u0627\u0644 \u0642\u0628\u0644 \u062f\u0648 \u0627\u0639\u0644\u0627\u0646 \u062f\u0627\u0631\u06cc\u0645: <code>firstName<\/code> \u062f\u0631 \u0633\u0637\u062d \u062c\u0647\u0627\u0646\u06cc \u0627\u0633\u062a \u0632\u06cc\u0631\u0627 \u062e\u0627\u0631\u062c \u0627\u0632 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a\u060c \u0648 <code>lastName<\/code> \u0628\u0647 \u0635\u0648\u0631\u062a \u0645\u062d\u0644\u06cc\/\u062a\u0627\u0628\u0639 \u062f\u0627\u0631\u0627\u06cc \u0645\u062d\u062f\u0648\u062f\u0647 \u0627\u0633\u062a \u0632\u06cc\u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">var<\/span> firstName = <span class=\"hljs-string\">\"John\"<\/span>;\n  \n<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">checkLastName<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n    <span class=\"hljs-keyword\">var<\/span> lastName = <span class=\"hljs-string\">\"Doe\"<\/span>;\n    <span class=\"hljs-built_in\">console<\/span>.log(lastName); <span class=\"hljs-comment\">\/\/ \"Doe\"<\/span>\n    <span class=\"hljs-built_in\">console<\/span>.log(firstName); <span class=\"hljs-comment\">\/\/ \"John\"<\/span>\n}\n  \ncheckLastName();\n<span class=\"hljs-built_in\">console<\/span>.log(lastName); <span class=\"hljs-comment\">\/\/ Uncaught ReferenceError: lastName is not defined<\/span>\n<\/code><\/pre>\n<p>\u062a\u0627 \u0627\u06cc\u0646\u062c\u0627\u06cc \u06a9\u0627\u0631 \u062e\u06cc\u0644\u06cc \u062e\u0648\u0628\u0647.  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644 &#8211; <code>var<\/code> \u06cc\u06a9 \u0645\u0633\u0626\u0644\u0647 \u062f\u0627\u0631\u062f<\/p>\n<h3 id=\"theissuewithvar\"><span class=\"ez-toc-section\" id=\"%d9%85%d9%88%d8%b6%d9%88%d8%b9_%d8%a8%d8%a7_var\"><\/span>\u0645\u0648\u0636\u0648\u0639 \u0628\u0627 <em>var<\/em><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><code>var<\/code>  \u0628\u0644\u0648\u06a9 \u0627\u0633\u06a9\u0648\u067e \u0646\u06cc\u0633\u062a.<\/strong> \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0628\u0644\u0648\u06a9 \u06a9\u062f\u060c \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u067e\u0631\u0627\u0646\u062a\u0632\u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc (<code>{}<\/code>)\u060c \u062f\u0627\u0645\u0646\u0647 \u0622\u0646 \u0627\u0632 \u0628\u0644\u0648\u06a9 &#8220;\u0628\u06cc\u0631\u0648\u0646 \u0645\u06cc \u0631\u0648\u062f&#8221;!  \u0628\u0631\u0627\u06cc \u0645\u062b\u0627\u0644:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">var<\/span> name = <span class=\"hljs-string\">\"John Doe\"<\/span>;\n  \n<span class=\"hljs-keyword\">var<\/span> someBool = <span class=\"hljs-literal\">true<\/span>;\n<span class=\"hljs-keyword\">if<\/span> (someBool) {\n  <span class=\"hljs-keyword\">var<\/span> name = <span class=\"hljs-string\">\"Daniel Joan\"<\/span>;\n}\n  \n<span class=\"hljs-built_in\">console<\/span>.log(name);\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 <code>name<\/code> \u06a9\u0647 \u0627\u0634\u0627\u0631\u0647 \u0628\u0647 &#8220;\u062c\u0627\u0646 \u062f\u0648&#8221; \u062c\u0647\u0627\u0646\u06cc \u0627\u0633\u062a\u060c \u0648 <code>name<\/code> \u06a9\u0647 \u0628\u0647 &#8220;\u062f\u0627\u0646\u06cc\u0644 \u062c\u0648\u0622\u0646&#8221; \u0627\u0634\u0627\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f \u062f\u0631 \u06cc\u06a9 \u0628\u0644\u0648\u06a9 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0645\u0627 \u0633\u0639\u06cc \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u0622\u0646 \u0631\u0627 \u0686\u0627\u067e \u06a9\u0646\u06cc\u0645 <code>name<\/code> \u06a9\u0647 \u062f\u0631 \u0645\u062d\u062f\u0648\u062f\u0647 \u0627\u0633\u062a\u060c \u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0648\u0627\u0631\u062f \u0628\u0631\u062e\u0648\u0631\u062f \u0645\u06cc \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\">Daniel Joan\n<\/code><\/pre>\n<blockquote>\n<p><code>var<\/code>  \u0628\u0644\u0648\u06a9 \u0627\u0633\u06a9\u0648\u067e \u0646\u06cc\u0633\u062a.  \u0645\u0627 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a <em>\u0641\u06a9\u0631<\/em> \u06a9\u0647 \u0645\u0627 \u06cc\u06a9 \u0645\u062d\u0644\u06cc \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 <code>var name<\/code> \u0628\u0647 &#8220;\u062f\u0627\u0646\u06cc\u0644 \u062c\u0648\u0622\u0646&#8221; \u0627\u0634\u0627\u0631\u0647 \u06a9\u0646\u06cc\u0645\u060c \u0627\u0645\u0627 \u06a9\u0627\u0631\u06cc \u06a9\u0647 \u0645\u0627 \u062f\u0631 \u0648\u0627\u0642\u0639\u06cc\u062a \u0627\u0646\u062c\u0627\u0645 \u062f\u0627\u062f\u0647 \u0627\u06cc\u0645 \u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u0627\u0633\u062a <code>var name<\/code> \u06a9\u0647 \u0628\u0647 &#8220;\u062c\u0627\u0646 \u062f\u0648&#8221; \u0627\u0634\u0627\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<\/blockquote>\n<p>\u0627\u0639\u0644\u0627\u0646 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>var<\/code> \u0627\u0639\u0644\u0627\u0646\u200c\u0647\u0627 \u062f\u0631 \u0647\u0645\u0647 \u062c\u0627\u06cc \u06a9\u062f \u0634\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0645\u0646\u062c\u0631 \u0628\u0647 \u0633\u0631\u062f\u0631\u06af\u0645\u06cc\u060c \u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u062c\u0647\u0627\u0646\u06cc \u0645\u0648\u062c\u0648\u062f \u0648 \u0628\u0647\u200c\u0637\u0648\u0631 \u067e\u0633\u0648\u0646\u062f &#8211; \u0627\u0634\u06a9\u0627\u0644\u200c\u0647\u0627 \u0634\u0648\u0646\u062f\u060c \u062f\u0631\u0633\u062a \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0642\u0637\u0639\u0647 \u06a9\u062f \u062f\u06cc\u062f\u06cc\u0645.<\/p>\n<p>\u0627\u06cc\u0646\u062c\u0627\u0633\u062a \u06a9\u0647 <code>let<\/code> \u0648 <code>const<\/code> \u0644\u06af\u062f \u0628\u0647 \u062f\u0627\u062e\u0644!<\/p>\n<h2 id=\"theletkeywordinjavascript\"><span class=\"ez-toc-section\" id=\"%d8%a7%db%8c%d9%86_%d8%a7%d8%ac%d8%a7%d8%b2%d9%87_%d8%af%d9%87%db%8c%d8%af_%da%a9%d9%84%d9%85%d9%87_%da%a9%d9%84%db%8c%d8%af%db%8c_%d8%af%d8%b1_%d8%ac%d8%a7%d9%88%d8%a7_%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa\"><\/span>\u0627\u06cc\u0646 <em>\u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f<\/em> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06cc\u0646 <code>let<\/code> \u0627\u0639\u0644\u0627\u0646 \u0628\u0627 ES6 \u0645\u0639\u0631\u0641\u06cc \u0634\u062f \u0648 \u0627\u0632 \u0622\u0646 \u0632\u0645\u0627\u0646 \u0628\u0647 \u0631\u0648\u0634 \u062a\u0631\u062c\u06cc\u062d\u06cc \u0628\u0631\u0627\u06cc \u0627\u0639\u0644\u0627\u0646 \u0645\u062a\u063a\u06cc\u0631 \u062a\u0628\u062f\u06cc\u0644 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u067e\u06cc\u0634\u0631\u0641\u062a \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f <code>var<\/code> \u0627\u0639\u0644\u0627\u0645\u06cc\u0647 \u0647\u0627 \u0648 <em>\u0627\u0633\u062a<\/em> \u0645\u062d\u062f\u0648\u062f\u0647 \u0628\u0644\u0648\u06a9\u06cc (\u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0641\u0642\u0637 \u062f\u0631 \u0628\u0644\u0648\u06a9 \u0641\u0648\u0631\u06cc \u0642\u0627\u0628\u0644 \u062f\u0633\u062a\u0631\u0633\u06cc \u0647\u0633\u062a\u0646\u062f)\u060c \u062f\u0648\u0631 \u0632\u062f\u0646 \u0645\u0634\u06a9\u0644 \u0627\u0635\u0644\u06cc \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>var<\/code>.<\/p>\n<h3 id=\"scopeoflet\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%ad%d8%af%d9%88%d8%af%d9%87_%d8%a7%d8%b2_%d8%a7%d8%ac%d8%a7%d8%b2%d9%87_%d8%af%d9%87%db%8c%d8%af\"><\/span>\u0645\u062d\u062f\u0648\u062f\u0647 \u0627\u0632 <em>\u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f<\/em><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0645\u062a\u063a\u06cc\u0631\u06cc \u06a9\u0647 \u0628\u0627 <code>let<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u062f\u0627\u0631\u0627\u06cc \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u062f\u0648\u062f \u0628\u0647 \u0628\u0644\u0648\u06a9 \u06cc\u0627 \u062a\u0627\u0628\u0639\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">let<\/span> firstName = <span class=\"hljs-string\">\"John\"<\/span>;\n<span class=\"hljs-keyword\">let<\/span> lastName = <span class=\"hljs-string\">\"Doe\"<\/span>;\n\n<span class=\"hljs-keyword\">let<\/span> someBool = <span class=\"hljs-literal\">true<\/span>;\n<span class=\"hljs-keyword\">if<\/span>(someBool){\n    <span class=\"hljs-keyword\">let<\/span> firstName = <span class=\"hljs-string\">\"Jane\"<\/span>;\n    <span class=\"hljs-built_in\">console<\/span>.log(firstName);\n}\n  \n<span class=\"hljs-built_in\">console<\/span>.log(firstName);\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u0628\u0627\u0631 \u062f\u0631 \u0627\u0637\u0631\u0627\u0641 &#8211; <code>firstName<\/code> \u0628\u0627 \u0627\u0634\u0627\u0631\u0647 \u0628\u0647 &#8220;\u062c\u06cc\u0646&#8221; \u0648 <code>firstName<\/code> \u0628\u0627 \u0627\u0634\u0627\u0631\u0647 \u0628\u0647 &#8220;\u062c\u0627\u0646&#8221; \u0647\u0645\u067e\u0648\u0634\u0627\u0646\u06cc \u0646\u06a9\u0646\u06cc\u062f!  \u06a9\u062f \u0646\u062a\u06cc\u062c\u0647 \u0645\u06cc \u062f\u0647\u062f:<\/p>\n<pre><code class=\"hljs\">Jane\nJohn\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 <code>firstName<\/code> \u0627\u0639\u0644\u0627\u0645 \u0634\u062f\u0647 \u062f\u0631 \u062f\u0627\u062e\u0644 \u0628\u0644\u0648\u06a9 \u0627\u0632 \u0646\u0638\u0631 \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u062f\u0648\u062f \u0628\u0647 \u0628\u0644\u0648\u06a9 \u0627\u0633\u062a \u0648 \u0622\u0646\u0686\u0647 \u062f\u0631 \u062e\u0627\u0631\u062c \u0627\u0632 \u0628\u0644\u0648\u06a9 \u0627\u0639\u0644\u0627\u0645 \u0634\u062f\u0647 \u0627\u0633\u062a \u062f\u0631 \u0633\u0637\u062d \u062c\u0647\u0627\u0646\u06cc \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0627\u0633\u062a.  \u0647\u0631 \u062f\u0648 \u0646\u0645\u0648\u0646\u0647 \u0627\u0632 <code>firstName<\/code> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0631\u0627\u062c\u0639 \u0645\u062a\u063a\u06cc\u0631 \u0645\u062a\u0641\u0627\u0648\u062a \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f\u060c \u0632\u06cc\u0631\u0627 \u062f\u0627\u0645\u0646\u0647 \u0647\u0627\u06cc \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u062f\u0627\u0631\u0646\u062f.<\/p>\n<h2 id=\"theconstkeywordinjavascript\"><span class=\"ez-toc-section\" id=\"%d8%a7%db%8c%d9%86_%d9%be%d8%a7%db%8c%d8%a7%d9%86_%da%a9%d9%84%d9%85%d9%87_%da%a9%d9%84%db%8c%d8%af%db%8c_%d8%af%d8%b1_%d8%ac%d8%a7%d9%88%d8%a7_%d8%a7%d8%b3%da%a9%d8%b1%db%8c%d9%be%d8%aa\"><\/span>\u0627\u06cc\u0646 <em>\u067e\u0627\u06cc\u0627\u0646<\/em> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06cc\u0646 <code>const<\/code> \u0627\u0639\u0644\u0627\u0645\u06cc\u0647 \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 ES6 \u0645\u0639\u0631\u0641\u06cc \u0634\u062f <code>let<\/code>\u060c \u0648 \u0628\u0633\u06cc\u0627\u0631 \u0634\u0628\u06cc\u0647 \u0628\u0647 <code>let<\/code>. <code>const<\/code> \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u0632 \u0646\u0627\u0645\u0634 \u067e\u06cc\u062f\u0627\u0633\u062a \u0628\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc\u06cc \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u0627\u0634\u0627\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062b\u0627\u0628\u062a\u06cc \u062f\u0627\u0631\u0646\u062f. <code>const<\/code> \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0645\u0631\u062c\u0639 \u0631\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u062f\u0648\u0628\u0627\u0631\u0647 \u0628\u0647 \u06cc\u06a9 \u0634\u06cc \u0645\u062a\u0641\u0627\u0648\u062a \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> name = <span class=\"hljs-string\">\"John\"<\/span>;\n<span class=\"hljs-keyword\">const<\/span> name = <span class=\"hljs-string\">\"Jane\"<\/span>;\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u0645\u0646\u062c\u0631 \u0628\u0647:<\/p>\n<pre><code class=\"hljs\">Uncaught SyntaxError: Identifier 'name' has already been declared\n<\/code><\/pre>\n<h3 id=\"scopeofconst\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%ad%d8%af%d9%88%d8%af%d9%87_%d8%a7%d8%b2_%d9%be%d8%a7%db%8c%d8%a7%d9%86\"><\/span>\u0645\u062d\u062f\u0648\u062f\u0647 \u0627\u0632 <em>\u067e\u0627\u06cc\u0627\u0646<\/em><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0645\u062d\u062f\u0648\u062f\u0647 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0628\u0627 <code>const<\/code> \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc\u060c \u0645\u0627\u0646\u0646\u062f \u0645\u062d\u062f\u0648\u062f\u0647 <code>let<\/code> \u0627\u0639\u0644\u0627\u0646\u0627\u062a\u060c \u0645\u062d\u062f\u0648\u062f \u0628\u0647 \u0628\u0644\u0648\u06a9\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062a\u0648\u0633\u0637 \u0645\u0647\u0627\u0631\u0628\u0646\u062f\u0647\u0627\u06cc \u0641\u0631\u0641\u0631\u06cc (\u06cc\u06a9 \u062a\u0627\u0628\u0639 \u06cc\u0627 \u06cc\u06a9 \u0628\u0644\u0648\u06a9) \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u062a\u0645\u0627\u06cc\u0632 \u0627\u0635\u0644\u06cc \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0631\u0648\u0632 \u06a9\u0631\u062f \u06cc\u0627 \u062f\u0648\u0628\u0627\u0631\u0647 \u0627\u0639\u0644\u0627\u0645 \u06a9\u0631\u062f\u060c \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u06a9\u0647 \u0645\u0642\u062f\u0627\u0631 \u062f\u0631 \u0645\u062d\u062f\u0648\u062f\u0647 \u062b\u0627\u0628\u062a \u0628\u0627\u0642\u06cc \u0645\u06cc \u0645\u0627\u0646\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> name = <span class=\"hljs-string\">\"John\"<\/span>;\nname = <span class=\"hljs-string\">\"Doe\"<\/span>;\n  \n<span class=\"hljs-comment\">\/\/ Uncaught TypeError: Assignment to constant variable. <\/span>\n<\/code><\/pre>\n<h2 id=\"goodcodingconventions\"><span class=\"ez-toc-section\" id=\"%da%a9%d9%86%d9%88%d8%a7%d9%86%d8%b3%db%8c%d9%88%d9%86_%d9%87%d8%a7%db%8c_%da%a9%d8%af%d9%86%d9%88%db%8c%d8%b3%db%8c_%d8%ae%d9%88%d8%a8\"><\/span>\u06a9\u0646\u0648\u0627\u0646\u0633\u06cc\u0648\u0646 \u0647\u0627\u06cc \u06a9\u062f\u0646\u0648\u06cc\u0633\u06cc \u062e\u0648\u0628<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0627\u06cc\u0646 \u0647\u0645\u0647 \u0628\u0647 \u0686\u0647 \u0645\u0639\u0646\u0627\u0633\u062a\u060c \u0648 \u06a9\u062f\u0627\u0645\u06cc\u06a9 \u0631\u0627 \u0628\u0627\u06cc\u062f \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u062f\u060c \u063a\u06cc\u0631 \u0627\u0632 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0622\u0634\u06a9\u0627\u0631 \u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0627\u0634\u06a9\u0627\u0644\u061f  \u0627\u06cc\u0646 \u062f\u0631 \u0648\u0627\u0642\u0639 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0686\u0646\u062f \u0631\u0648\u0634 \u062e\u0648\u0628 \u062e\u0644\u0627\u0635\u0647 \u0634\u0648\u062f:<\/p>\n<ul>\n<li><code>const<\/code>  \u062a\u0631\u062c\u06cc\u062d \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f <code>let<\/code>\u060c \u06a9\u0647 \u062a\u0631\u062c\u06cc\u062d \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f <code>var<\/code>.  \u0627\u0632 \u0645\u0635\u0631\u0641 \u062e\u0648\u062f\u062f\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f <code>var<\/code>.<\/li>\n<li><code>let<\/code>  \u062a\u0631\u062c\u06cc\u062d \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f <code>const<\/code> \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0645\u0634\u062e\u0635 \u0634\u0648\u062f \u0645\u0642\u062f\u0627\u0631\u06cc \u06a9\u0647 \u0628\u0647 \u0622\u0646 \u0627\u0634\u0627\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<li><code>const<\/code>  \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 \u062c\u0647\u0627\u0646\u06cc \u0648 \u062b\u0627\u0628\u062a \u0639\u0627\u0644\u06cc \u0627\u0633\u062a.<\/li>\n<li>\u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 \u0647\u0627 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0647 \u0635\u0648\u0631\u062a \u0648\u0627\u0631\u062f\u0627\u062a\u06cc \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u0634\u0648\u0646\u062f <code>const<\/code>.<\/li>\n<\/ul>\n<p>\u0647\u0646\u06af\u0627\u0645 \u0648\u0627\u0631\u062f \u06a9\u0631\u062f\u0646 \u06cc\u06a9 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 \u0648 \u0646\u0645\u0648\u0646\u0647 \u0633\u0627\u0632\u06cc \u0622\u0646 &#8211; \u0646\u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0628\u062a\u0648\u0627\u0646\u06cc\u062f \u0646\u0645\u0648\u0646\u0647 \u0631\u0627 \u062f\u0648\u0628\u0627\u0631\u0647 \u0628\u0647 \u0686\u06cc\u0632 \u062f\u06cc\u06af\u0631\u06cc \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062f\u060c \u0632\u06cc\u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0634\u06cc\u0628 \u0644\u063a\u0632\u0646\u062f\u0647 \u0627\u0632 &#8220;\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647&#8221; \u0648\u0627\u0631\u062f \u0645\u06cc \u0634\u0648\u06cc\u062f\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0686\u06cc\u0632 \u062f\u06cc\u06af\u0631\u06cc \u062f\u0631 \u0632\u06cc\u0631 &#8220;\u06a9\u062f \u0648\u0627\u0631\u062f \u0645\u06cc \u0634\u0648\u062f&#8221; \u0627\u0633\u062a. \u0647\u0648\u062f.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0627\u06af\u0631 \u0642\u0631\u0627\u0631 \u0628\u0648\u062f <code>require()<\/code> \u06cc\u06a9 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 \u0645\u0627\u0646\u0646\u062f Axios\u060c \u0627\u062d\u062a\u0645\u0627\u0644\u0627\u064b \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0627\u0632 API \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0647\u06cc\u0686 \u0686\u06cc\u0632 \u0645\u0627\u0646\u0639 \u0634\u0645\u0627 (\u06cc\u0627 \u0634\u062e\u0635 \u062f\u06cc\u06af\u0631\u06cc) \u0646\u0645\u06cc \u0634\u0648\u062f <em>\u062e\u0627\u0645\u0648\u0634 \u06a9\u0631\u062f\u0646 <code>axios<\/code> \u0645\u062b\u0627\u0644 \u0628\u0627 \u0686\u06cc\u0632 \u062f\u06cc\u06af\u0631\u06cc<\/em> \u0627\u06af\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u06a9\u0631\u062f\u0647 \u0627\u06cc\u062f <code>const<\/code> \u0628\u0631\u0627\u06cc \u0627\u0639\u0644\u0627\u0645 \u0622\u0646:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">let<\/span> axios = <span class=\"hljs-built_in\">require<\/span>(<span class=\"hljs-string\">'axios'<\/span>);\naxios.get(<span class=\"hljs-string\">'some_url'<\/span>).then(someFunction());\n\naxios = <span class=\"hljs-string\">\"Totally not a string!\"<\/span>\naxios.get(<span class=\"hljs-string\">'some_url'<\/span>).then(someFunction()); <span class=\"hljs-comment\">\/\/ String has no method `get()`<\/span>\n<\/code><\/pre>\n<p>\u0628\u0627 \u062f\u0627\u0634\u062a\u0646 <code>axios<\/code> \u0628\u0648\u062f\u0646 <code>const<\/code> &#8211; \u0627\u0632 \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0627\u062c\u062a\u0646\u0627\u0628 \u0645\u06cc \u0634\u0648\u062f.  \u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0627\u06cc\u0646\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062b\u0627\u0628\u062a \u0647\u0627\u06cc \u062c\u0647\u0627\u0646\u06cc \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u062b\u0627\u0628\u062a \u0647\u0627\u06cc \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u0646\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> WIDTH = <span class=\"hljs-number\">1920<\/span>;\n<span class=\"hljs-keyword\">const<\/span> HEIGHT = <span class=\"hljs-number\">1080<\/span>;\n<\/code><\/pre>\n<h2 id=\"conclusion\"><span class=\"ez-toc-section\" id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\"><\/span>\u0646\u062a\u06cc\u062c\u0647<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627\u060c \u067e\u06cc\u0634\u0631\u0641\u062a \u0627\u0639\u0644\u0627\u0646 \u0645\u062a\u063a\u06cc\u0631 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0631\u0627 \u0627\u0632 \u0646\u0633\u062e\u0647 \u0627\u0635\u0644\u06cc \u0628\u0631\u0631\u0633\u06cc \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 <code>var<\/code> \u0628\u0647 \u062c\u062f\u06cc\u062f\u062a\u0631 <code>let<\/code> \u0648 <code>const<\/code>.<\/p>\n<p>\u0645\u0627 \u062f\u0627\u0645\u0646\u0647\u200c\u0647\u0627 \u0631\u0627 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0631\u0631\u0633\u06cc \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645 \u0648 \u0627\u06cc\u0646\u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u062f\u0627\u0644\u200c\u0647\u0627\u06cc \u0627\u0639\u0644\u0627\u0646\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0628\u0631 \u062f\u0627\u0645\u0646\u0647 \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u062f\u0631 \u06a9\u062f \u062a\u0623\u062b\u06cc\u0631 \u0645\u06cc\u200c\u06af\u0630\u0627\u0631\u0646\u062f\u060c \u0628\u0647 \u06cc\u06a9 \u0645\u0634\u06a9\u0644 \u0622\u0634\u06a9\u0627\u0631 \u062f\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0627\u0634\u0627\u0631\u0647 \u06a9\u0631\u062f\u06cc\u0645. <code>var<\/code>.  \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a\u060c \u0628\u0631\u062e\u06cc \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u062e\u0648\u0628 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645\u060c \u0648 \u06cc\u0627\u062f\u0622\u0648\u0631 \u0645\u06cc\u200c\u0634\u0648\u06cc\u0645 \u06a9\u0647 \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0627\u0632 \u06a9\u062f\u0627\u0645 \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645.<\/p>\n<\/div>\n<p><br \/>\n<br \/>\u0645\u0646\u062a\u0634\u0631 \u0634\u062f\u0647 \u062f\u0631 1403-01-12 14:48:03<br \/>\n<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;15452&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628&quot;,&quot;legend&quot;:&quot;0\\\/5 (0 \u0631\u0627\u06cc)&quot;,&quot;size&quot;:&quot;30&quot;,&quot;title&quot;:&quot;\u062a\u0641\u0627\u0648\u062a \u0628\u06cc\u0646 var\u060c let \u0648 const \u062f\u0631 JavaScript \u0648 Best PracticesProgramming \u0647\u0645\u06cc\u0634\u0647 \u0634\u0627\u0645\u0644 \u062a\u0639\u0631\u06cc\u0641 \u062f\u0627\u062f\u0647\u060c \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0648 \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a.  \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0635\u0648\u0631\u062a \u0628\u06cc\u062a \u0647\u0627\u06cc\u06cc \u0627\u0632 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0646\u0634\u0627\u0646 \u062f\u0627\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631\u06cc \u0622\u0646\u0647\u0627 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u06cc\u0645.  \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u06a9\u0627\u0646\u200c\u0647\u0627\u06cc \u062d\u0627\u0641\u0638\u0647 \u0686\u0646\u062f\u0627\u0646 \u0642\u0627\u0628\u0644 \u062e\u0648\u0627\u0646\u062f\u0646 \u0628\u0631\u0627\u06cc \u0627\u0646\u0633\u0627\u0646 \u0646\u06cc\u0633\u062a\u0646\u062f \u0648 \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f - \u0645\u0627 \u0634\u0631\u0648\u0639 \u0628\u0647 \u062d\u0627\u0634\u06cc\u0647\u200c\u0646\u0648\u06cc\u0633\u06cc \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0645\u062a\u063a\u06cc\u0631 \u0628\u0627 \u062f\u0627\u0644\u200c\u0647\u0627\u06cc \u0642\u0627\u0628\u0644 \u062e\u0648\u0627\u0646\u062f\u0646 \u0628\u0631\u0627\u06cc \u0627\u0646\u0633\u0627\u0646 \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645 \u06a9\u0647...&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} ({count} \u0631\u0627\u06cc)&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 7<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0645\u0639\u0631\u0641\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0647\u0645\u06cc\u0634\u0647 \u0634\u0627\u0645\u0644 \u062a\u0639\u0631\u06cc\u0641 \u062f\u0627\u062f\u0647\u060c \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0648 \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a. \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0635\u0648\u0631\u062a \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f \u0628\u06cc\u062a \u0647\u0627 \u0627\u0637\u0644\u0627\u0639\u0627\u062a\u06cc \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u06cc\u0645. \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u06a9\u0627\u0646 \u0647\u0627\u06cc \u062d\u0627\u0641\u0638\u0647 \u0686\u0646\u062f\u0627\u0646 \u0642\u0627\u0628\u0644 \u062e\u0648\u0627\u0646\u062f\u0646 \u062a\u0648\u0633\u0637 \u0627\u0646\u0633\u0627\u0646 \u0646\u06cc\u0633\u062a\u0646\u062f\u060c \u0648 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0627\u062f\u0646 \u062f\u0631 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":9049,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1772,620],"tags":[3962,1100,3963,3961,1252,1938,2341,3906,2103,1776,1811,338,3969,1779,1814,1909,1841,1965,1807,3965,2039,2120,2846,3190,2119,2105,3268,1103,3968,3970,2370,1837,3467,1796,2436,3971,2750,3313,3452,1803,2380,3316,2015,3515,3633,3270,3966,3972,1795,1969,2326,3967,1790,3849,3466,3367,3964,3438,1765,2250,1785,1978,2273],"class_list":{"0":"post-15452","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-javascript","8":"category-programming","9":"tag-const","10":"tag-javascript","11":"tag-practicesprogramming","12":"tag-var","13":"tag--nodejs","14":"tag-1938","15":"tag-2341","16":"tag-3906","17":"tag-2103","18":"tag-1776","19":"tag-1811","20":"tag-338","21":"tag-3969","22":"tag-1779","23":"tag-1814","24":"tag-1909","25":"tag-1841","26":"tag-1965","27":"tag-1807","28":"tag-3965","29":"tag-2039","30":"tag-2120","31":"tag-2846","32":"tag-3190","33":"tag-2119","34":"tag-2105","35":"tag-3268","36":"tag-1103","37":"tag-3968","38":"tag-3970","39":"tag-2370","40":"tag-1837","41":"tag-3467","42":"tag-1796","43":"tag-2436","44":"tag-3971","45":"tag-2750","46":"tag-3313","47":"tag-3452","48":"tag-1803","49":"tag-2380","50":"tag-3316","51":"tag-2015","52":"tag-3515","53":"tag-3633","54":"tag-3270","55":"tag-3966","56":"tag-3972","57":"tag-1795","58":"tag-1969","59":"tag-2326","60":"tag-3967","61":"tag-1790","62":"tag-3849","63":"tag-3466","64":"tag-3367","65":"tag-3964","66":"tag-3438","67":"tag-1765","69":"tag-1785","70":"tag-1978","71":"tag-2273"},"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/15452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/comments?post=15452"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/15452\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/9049"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=15452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=15452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=15452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}